llvm::DbgVariableRecord Class Reference

Record of a variable value-assignment, aka a non instruction representation of the dbg.value intrinsic. More...

#include "llvm/IR/DebugProgramInstruction.h"

Inheritance diagram for llvm::DbgVariableRecord:

Classes
class	location_op_iterator
	Iterator for ValueAsMetadata that internally uses direct pointer iteration over either a ValueAsMetadata* or a ValueAsMetadata**, dereferencing to the ValueAsMetadata . More...

Public Types
enum class	LocationType : uint8_t {   Declare , Value , Assign , DeclareValue ,   End , Any }
Public Types inherited from llvm::DbgRecord
enum	Kind : uint8_t { ValueKind , LabelKind }
	Subclass discriminator. More...
using	self_iterator = simple_ilist<DbgRecord>::iterator
using	const_self_iterator = simple_ilist<DbgRecord>::const_iterator

Public Member Functions
LLVM_ABI	DbgVariableRecord (const DbgVariableIntrinsic *DVI)
	Create a new DbgVariableRecord representing the intrinsic DVI, for example the assignment represented by a dbg.value.
LLVM_ABI	DbgVariableRecord (const DbgVariableRecord &DVR)
LLVM_ABI	DbgVariableRecord (Metadata *Location, DILocalVariable *DV, DIExpression *Expr, const DILocation *DI, LocationType Type=LocationType::Value)
	Directly construct a new DbgVariableRecord representing a dbg.value intrinsic assigning Location to the DV / Expr / DI variable.
LLVM_ABI	DbgVariableRecord (Metadata *Value, DILocalVariable *Variable, DIExpression *Expression, DIAssignID *AssignID, Metadata *Address, DIExpression *AddressExpression, const DILocation *DI)
bool	isDbgDeclare () const
bool	isDbgValue () const
bool	isDbgDeclareValue () const
LLVM_ABI iterator_range< location_op_iterator >	location_ops () const
	Get the locations corresponding to the variable referenced by the debug info intrinsic.
LLVM_ABI Value *	getVariableLocationOp (unsigned OpIdx) const
LLVM_ABI void	replaceVariableLocationOp (Value *OldValue, Value *NewValue, bool AllowEmpty=false)
LLVM_ABI void	replaceVariableLocationOp (unsigned OpIdx, Value *NewValue)
LLVM_ABI void	addVariableLocationOps (ArrayRef< Value * > NewValues, DIExpression *NewExpr)
	Adding a new location operand will always result in this intrinsic using an ArgList, and must always be accompanied by a new expression that uses the new operand.
LLVM_ABI unsigned	getNumVariableLocationOps () const
bool	hasArgList () const
bool	hasValidLocation () const
	Returns true if this DbgVariableRecord has no empty MDNodes in its location list.
bool	isAddressOfVariable () const
	Does this describe the address of a local variable.
bool	isValueOfVariable () const
	Determine if this describes the value of a local variable.
LocationType	getType () const
LLVM_ABI void	setKillLocation ()
LLVM_ABI bool	isKillLocation () const
void	setVariable (DILocalVariable *NewVar)
DILocalVariable *	getVariable () const
MDNode *	getRawVariable () const
void	setExpression (DIExpression *NewExpr)
DIExpression *	getExpression () const
MDNode *	getRawExpression () const
Metadata *	getRawLocation () const
	Returns the metadata operand for the first location description.
Value *	getValue (unsigned OpIdx=0) const
void	setRawLocation (Metadata *NewLocation)
	Use of this should generally be avoided; instead, replaceVariableLocationOp and addVariableLocationOps should be used where possible to avoid creating invalid state.
LLVM_ABI std::optional< DbgVariableFragmentInfo >	getFragment () const
DbgVariableFragmentInfo	getFragmentOrEntireVariable () const
	Get the FragmentInfo for the variable if it exists, otherwise return a FragmentInfo that covers the entire variable if the variable size is known, otherwise return a zero-sized fragment.
LLVM_ABI std::optional< uint64_t >	getFragmentSizeInBits () const
	Get the size (in bits) of the variable, or fragment of the variable that is described.
bool	isEquivalentTo (const DbgVariableRecord &Other) const
bool	isIdenticalToWhenDefined (const DbgVariableRecord &Other) const
LLVM_ABI DbgVariableRecord *	clone () const
LLVM_ABI DbgVariableIntrinsic *	createDebugIntrinsic (Module *M, Instruction *InsertBefore) const
	Convert this DbgVariableRecord back into a dbg.value intrinsic.
LLVM_ABI void	handleChangedLocation (Metadata *NewLocation)
	Handle changes to the location of the Value(s) that we refer to happening "under our feet".
LLVM_ABI void	print (raw_ostream &O, bool IsForDebug=false) const
LLVM_ABI void	print (raw_ostream &ROS, ModuleSlotTracker &MST, bool IsForDebug) const
DbgAssign Methods
bool	isDbgAssign () const
LLVM_ABI Value *	getAddress () const
Metadata *	getRawAddress () const
Metadata *	getRawAssignID () const
LLVM_ABI DIAssignID *	getAssignID () const
DIExpression *	getAddressExpression () const
MDNode *	getRawAddressExpression () const
void	setAddressExpression (DIExpression *NewExpr)
LLVM_ABI void	setAssignId (DIAssignID *New)
void	setAddress (Value *V)
LLVM_ABI void	setKillAddress ()
	Kill the address component.
LLVM_ABI bool	isKillAddress () const
	Check whether this kills the address component.
Public Member Functions inherited from llvm::DbgRecord
	DbgRecord (Kind RecordKind, DebugLoc DL)
LLVM_ABI bool	isEquivalentTo (const DbgRecord &R) const
	Same as isIdenticalToWhenDefined but checks DebugLoc too.
Kind	getRecordKind () const
void	setMarker (DbgMarker *M)
DbgMarker *	getMarker ()
const DbgMarker *	getMarker () const
LLVM_ABI BasicBlock *	getBlock ()
LLVM_ABI const BasicBlock *	getBlock () const
LLVM_ABI Function *	getFunction ()
LLVM_ABI const Function *	getFunction () const
LLVM_ABI Module *	getModule ()
LLVM_ABI const Module *	getModule () const
LLVM_ABI LLVMContext &	getContext ()
LLVM_ABI const LLVMContext &	getContext () const
LLVM_ABI const Instruction *	getInstruction () const
LLVM_ABI const BasicBlock *	getParent () const
LLVM_ABI BasicBlock *	getParent ()
LLVM_ABI void	removeFromParent ()
LLVM_ABI void	eraseFromParent ()
DbgRecord *	getNextNode ()
DbgRecord *	getPrevNode ()
LLVM_ABI void	insertBefore (DbgRecord *InsertBefore)
LLVM_ABI void	insertAfter (DbgRecord *InsertAfter)
LLVM_ABI void	moveBefore (DbgRecord *MoveBefore)
LLVM_ABI void	moveAfter (DbgRecord *MoveAfter)
LLVM_ABI void	insertBefore (self_iterator InsertBefore)
LLVM_ABI void	insertAfter (self_iterator InsertAfter)
LLVM_ABI void	moveBefore (self_iterator MoveBefore)
LLVM_ABI void	moveAfter (self_iterator MoveAfter)
DebugLoc	getDebugLoc () const
void	setDebugLoc (DebugLoc Loc)
LLVM_ABI void	dump () const
LLVM_ABI void	deleteRecord ()
	Methods that dispatch to subclass implementations.
LLVM_ABI DbgRecord *	clone () const
LLVM_ABI void	print (raw_ostream &O, bool IsForDebug=false) const
LLVM_ABI void	print (raw_ostream &O, ModuleSlotTracker &MST, bool IsForDebug) const
LLVM_ABI bool	isIdenticalToWhenDefined (const DbgRecord &R) const
LLVM_ABI DbgInfoIntrinsic *	createDebugIntrinsic (Module *M, Instruction *InsertBefore) const
	Convert this DbgRecord back into an appropriate llvm.dbg.
Public Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< DbgRecord, Options... >::type >
self_iterator	getIterator ()
reverse_self_iterator	getReverseIterator ()
std::enable_if_t< T::is_sentinel_tracking_explicit, bool >	isSentinel () const
	Check whether this is the sentinel node.
Public Member Functions inherited from llvm::ilist_detail::node_parent_access< ilist_node_impl< ilist_detail::compute_node_options< DbgRecord, Options... >::type >, ilist_detail::compute_node_options< DbgRecord, Options... >::type::parent_ty >
const ilist_detail::compute_node_options< DbgRecord, Options... >::type::parent_ty *	getParent () const
void	setParent (ilist_detail::compute_node_options< DbgRecord, Options... >::type::parent_ty *Parent)

Static Public Member Functions
static LLVM_ABI DbgVariableRecord *	createUnresolvedDbgVariableRecord (LocationType Type, Metadata *Val, MDNode *Variable, MDNode *Expression, MDNode *AssignID, Metadata *Address, MDNode *AddressExpression)
	Used to create DbgVariableRecords during parsing, where some metadata references may still be unresolved.
static LLVM_ABI DbgVariableRecord *	createDVRAssign (Value *Val, DILocalVariable *Variable, DIExpression *Expression, DIAssignID *AssignID, Value *Address, DIExpression *AddressExpression, const DILocation *DI)
static LLVM_ABI DbgVariableRecord *	createLinkedDVRAssign (Instruction *LinkedInstr, Value *Val, DILocalVariable *Variable, DIExpression *Expression, Value *Address, DIExpression *AddressExpression, const DILocation *DI)
static LLVM_ABI DbgVariableRecord *	createDbgVariableRecord (Value *Location, DILocalVariable *DV, DIExpression *Expr, const DILocation *DI)
static LLVM_ABI DbgVariableRecord *	createDbgVariableRecord (Value *Location, DILocalVariable *DV, DIExpression *Expr, const DILocation *DI, DbgVariableRecord &InsertBefore)
static LLVM_ABI DbgVariableRecord *	createDVRDeclare (Value *Address, DILocalVariable *DV, DIExpression *Expr, const DILocation *DI)
static LLVM_ABI DbgVariableRecord *	createDVRDeclare (Value *Address, DILocalVariable *DV, DIExpression *Expr, const DILocation *DI, DbgVariableRecord &InsertBefore)
static LLVM_ABI DbgVariableRecord *	createDVRDeclareValue (Value *Address, DILocalVariable *DV, DIExpression *Expr, const DILocation *DI)
static LLVM_ABI DbgVariableRecord *	createDVRDeclareValue (Value *Address, DILocalVariable *DV, DIExpression *Expr, const DILocation *DI, DbgVariableRecord &InsertBefore)
static bool	classof (const DbgRecord *E)
	Support type inquiry through isa, cast, and dyn_cast.

Public Attributes
LocationType	Type
	Classification of the debug-info record that this DbgVariableRecord represents.
DbgRecordParamRef< DILocalVariable >	Variable
DbgRecordParamRef< DIExpression >	Expression
DbgRecordParamRef< DIExpression >	AddressExpression
Public Attributes inherited from llvm::DbgRecord
DbgMarker *	Marker = nullptr
	Marker that this DbgRecord is linked into.

Friends
class	DebugValueUser

Additional Inherited Members
Protected Types inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< DbgRecord, Options... >::type >
using	self_iterator
using	const_self_iterator
using	reverse_self_iterator
using	const_reverse_self_iterator
Protected Member Functions inherited from llvm::DbgRecord
	~DbgRecord ()=default
	Similarly to Value, we avoid paying the cost of a vtable by protecting the dtor and having deleteRecord dispatch cleanup.
Protected Member Functions inherited from llvm::ilist_node_impl< ilist_detail::compute_node_options< DbgRecord, Options... >::type >
	ilist_node_impl ()=default
Protected Member Functions inherited from llvm::DebugValueUser
ArrayRef< Metadata * >	getDebugValues () const
LLVM_ABI DbgVariableRecord *	getUser ()
LLVM_ABI const DbgVariableRecord *	getUser () const
LLVM_ABI void	handleChangedValue (void *Old, Metadata *NewDebugValue)
	To be called by ReplaceableMetadataImpl::replaceAllUsesWith, where Old is a pointer to one of the pointers in DebugValues (so should be type Metadata**), and NewDebugValue is the new Metadata* that is replacing *Old.
	DebugValueUser ()=default
	DebugValueUser (std::array< Metadata *, 3 > DebugValues)
	DebugValueUser (DebugValueUser &&X)
	DebugValueUser (const DebugValueUser &X)
DebugValueUser &	operator= (DebugValueUser &&X)
DebugValueUser &	operator= (const DebugValueUser &X)
	~DebugValueUser ()
void	resetDebugValues ()
void	resetDebugValue (size_t Idx, Metadata *DebugValue)
bool	operator== (const DebugValueUser &X) const
bool	operator!= (const DebugValueUser &X) const
Protected Attributes inherited from llvm::DbgRecord
DebugLoc	DbgLoc
Kind	RecordKind
	Subclass discriminator.
Protected Attributes inherited from llvm::DebugValueUser
std::array< Metadata *, 3 >	DebugValues

Detailed Description

Record of a variable value-assignment, aka a non instruction representation of the dbg.value intrinsic.

This class inherits from DebugValueUser to allow LLVM's metadata facilities to update our references to metadata beneath our feet.

Definition at line 276 of file DebugProgramInstruction.h.

Member Enumeration Documentation

LocationType

enum class llvm::DbgVariableRecord::LocationType : uint8_t

strong

Enumerator
Declare
Value
Assign
DeclareValue
End	Marks the end of the concrete types.
Any	To indicate all LocationTypes in searches.

Definition at line 280 of file DebugProgramInstruction.h.

Constructor & Destructor Documentation

DbgVariableRecord() [1/4]

DbgVariableRecord::DbgVariableRecord

(

const DbgVariableIntrinsic *

DVI

)

Create a new DbgVariableRecord representing the intrinsic DVI, for example the assignment represented by a dbg.value.

Definition at line 34 of file DebugProgramInstruction.cpp.

References llvm::DbgRecord::DbgRecord(), DebugValueUser, llvm::DbgRecord::getDebugLoc(), llvm::DbgVariableIntrinsic::getRawLocation(), and llvm::DbgRecord::ValueKind.

Referenced by clone(), createDbgVariableRecord(), createDbgVariableRecord(), createDVRAssign(), createDVRDeclare(), createDVRDeclare(), createDVRDeclareValue(), createDVRDeclareValue(), createLinkedDVRAssign(), createUnresolvedDbgVariableRecord(), DbgVariableRecord(), isEquivalentTo(), and isIdenticalToWhenDefined().

DbgVariableRecord() [2/4]

DbgVariableRecord::DbgVariableRecord

(

const DbgVariableRecord &

DVR

)

Definition at line 61 of file DebugProgramInstruction.cpp.

References AddressExpression, llvm::DbgRecord::DbgRecord(), DbgVariableRecord(), llvm::DebugValueUser::DebugValues, DebugValueUser, Expression, llvm::DbgRecord::getDebugLoc(), getExpression(), getType(), getVariable(), Type, llvm::DbgRecord::ValueKind, and Variable.

DbgVariableRecord() [3/4]

DbgVariableRecord::DbgVariableRecord	(	Metadata *	Location,
		DILocalVariable *	DV,
		DIExpression *	Expr,
		const DILocation *	DI,
		LocationType	Type = LocationType::Value )

Directly construct a new DbgVariableRecord representing a dbg.value intrinsic assigning Location to the DV / Expr / DI variable.

Definition at line 67 of file DebugProgramInstruction.cpp.

References llvm::DbgRecord::DbgRecord(), DebugValueUser, Type, and llvm::DbgRecord::ValueKind.

DbgVariableRecord() [4/4]

DbgVariableRecord::DbgVariableRecord	(	Metadata *	Value,
		DILocalVariable *	Variable,
		DIExpression *	Expression,
		DIAssignID *	AssignID,
		Metadata *	Address,
		DIExpression *	AddressExpression,
		const DILocation *	DI )

Definition at line 73 of file DebugProgramInstruction.cpp.

References llvm::Address, AddressExpression, llvm::DbgRecord::DbgRecord(), DebugValueUser, Expression, Value, llvm::DbgRecord::ValueKind, and Variable.

Member Function Documentation

addVariableLocationOps()

void DbgVariableRecord::addVariableLocationOps	(	ArrayRef< Value * >	NewValues,
		DIExpression *	NewExpr )

Adding a new location operand will always result in this intrinsic using an ArgList, and must always be accompanied by a new expression that uses the new operand.

Definition at line 358 of file DebugProgramInstruction.cpp.

References assert(), llvm::DIArgList::get(), getAsMetadata(), llvm::DbgRecord::getContext(), getNumVariableLocationOps(), getVariableLocationOp(), llvm::is_contained(), location_ops(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), setExpression(), setRawLocation(), and llvm::ArrayRef< T >::size().

classof()

bool llvm::DbgVariableRecord::classof ( const DbgRecord * E )

inlinestatic

Support type inquiry through isa, cast, and dyn_cast.

Definition at line 565 of file DebugProgramInstruction.h.

References llvm::DbgRecord::DbgRecord(), E(), and llvm::DbgRecord::ValueKind.

clone()

DbgVariableRecord * DbgVariableRecord::clone

(

)

const

Definition at line 412 of file DebugProgramInstruction.cpp.

References DbgVariableRecord().

Referenced by llvm::insertDebugValuesForPHIs().

createDbgVariableRecord() [1/2]

DbgVariableRecord * DbgVariableRecord::createDbgVariableRecord ( Value * Location, DILocalVariable * DV, DIExpression * Expr, const DILocation * DI )

static

Definition at line 181 of file DebugProgramInstruction.cpp.

References DbgVariableRecord(), llvm::ValueAsMetadata::get(), and Value.

Referenced by createDbgVariableRecord(), llvm::DIBuilder::insertDbgValueIntrinsic(), and insertNewDbgInst().

createDbgVariableRecord() [2/2]

DbgVariableRecord * DbgVariableRecord::createDbgVariableRecord ( Value * Location, DILocalVariable * DV, DIExpression * Expr, const DILocation * DI, DbgVariableRecord & InsertBefore )

static

Definition at line 188 of file DebugProgramInstruction.cpp.

References createDbgVariableRecord(), DbgVariableRecord(), and Value.

createDebugIntrinsic()

DbgVariableIntrinsic * DbgVariableRecord::createDebugIntrinsic	(	Module *	M,
		Instruction *	InsertBefore ) const

Convert this DbgVariableRecord back into a dbg.value intrinsic.

InsertBefore Optional position to insert this intrinsic.

Returns

A new dbg.value intrinsic representing this DbgVariableRecord.

Definition at line 421 of file DebugProgramInstruction.cpp.

References Any, assert(), Assign, llvm::cast(), llvm::CallInst::Create(), Declare, DeclareValue, End, llvm::MetadataAsValue::get(), getAddressExpression(), getAssignID(), llvm::MDNode::getContext(), llvm::DbgRecord::getDebugLoc(), getExpression(), llvm::Function::getFunctionType(), llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::Intrinsic::getOrInsertDeclaration(), getRawAddress(), getRawLocation(), getType(), getVariable(), llvm::Instruction::insertBefore(), isDbgAssign(), llvm_unreachable, llvm::Instruction::setDebugLoc(), llvm::CallInst::setTailCall(), and Value.

createDVRAssign()

DbgVariableRecord * DbgVariableRecord::createDVRAssign ( Value * Val, DILocalVariable * Variable, DIExpression * Expression, DIAssignID * AssignID, Value * Address, DIExpression * AddressExpression, const DILocation * DI )

static

Definition at line 229 of file DebugProgramInstruction.cpp.

References llvm::Address, AddressExpression, DbgVariableRecord(), Expression, llvm::ValueAsMetadata::get(), Value, and Variable.

Referenced by createLinkedDVRAssign(), and llvm::DIBuilder::insertDbgAssign().

createDVRDeclare() [1/2]

DbgVariableRecord * DbgVariableRecord::createDVRDeclare ( Value * Address, DILocalVariable * DV, DIExpression * Expr, const DILocation * DI )

static

Definition at line 196 of file DebugProgramInstruction.cpp.

References llvm::Address, DbgVariableRecord(), Declare, llvm::ValueAsMetadata::get(), and Value.

Referenced by createDVRDeclare(), llvm::DIBuilder::insertDeclare(), and insertNewDbgInst().

createDVRDeclare() [2/2]

DbgVariableRecord * DbgVariableRecord::createDVRDeclare ( Value * Address, DILocalVariable * DV, DIExpression * Expr, const DILocation * DI, DbgVariableRecord & InsertBefore )

static

Definition at line 205 of file DebugProgramInstruction.cpp.

References llvm::Address, createDVRDeclare(), DbgVariableRecord(), and Value.

createDVRDeclareValue() [1/2]

DbgVariableRecord * DbgVariableRecord::createDVRDeclareValue ( Value * Address, DILocalVariable * DV, DIExpression * Expr, const DILocation * DI )

static

Definition at line 214 of file DebugProgramInstruction.cpp.

References llvm::Address, DbgVariableRecord(), DeclareValue, llvm::ValueAsMetadata::get(), and Value.

Referenced by createDVRDeclareValue(), and llvm::DIBuilder::insertDeclareValue().

createDVRDeclareValue() [2/2]

DbgVariableRecord * DbgVariableRecord::createDVRDeclareValue ( Value * Address, DILocalVariable * DV, DIExpression * Expr, const DILocation * DI, DbgVariableRecord & InsertBefore )

static

Definition at line 221 of file DebugProgramInstruction.cpp.

References llvm::Address, createDVRDeclareValue(), DbgVariableRecord(), and Value.

createLinkedDVRAssign()

DbgVariableRecord * DbgVariableRecord::createLinkedDVRAssign ( Instruction * LinkedInstr, Value * Val, DILocalVariable * Variable, DIExpression * Expression, Value * Address, DIExpression * AddressExpression, const DILocation * DI )

static

Definition at line 238 of file DebugProgramInstruction.cpp.

References llvm::Address, AddressExpression, assert(), llvm::cast(), createDVRAssign(), DbgVariableRecord(), Expression, llvm::Instruction::getMetadata(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), Value, and Variable.

Referenced by emitDbgAssign(), and insertNewDbgInst().

createUnresolvedDbgVariableRecord()

DbgVariableRecord * DbgVariableRecord::createUnresolvedDbgVariableRecord ( DbgVariableRecord::LocationType Type, Metadata * Val, MDNode * Variable, MDNode * Expression, MDNode * AssignID, Metadata * Address, MDNode * AddressExpression )

static

Used to create DbgVariableRecords during parsing, where some metadata references may still be unresolved.

Although for some fields a generic Metadata* argument is accepted for forward type-references, the verifier and accessors will reject incorrect types later on. The function is used for all types of DbgVariableRecords for simplicity while parsing, but asserts if any necessary fields are empty or unused fields are not empty, i.e. if the #dbg_assign fields are used for a non-dbg-assign type.

Definition at line 172 of file DebugProgramInstruction.cpp.

References llvm::Address, AddressExpression, DbgVariableRecord(), Expression, Type, and Variable.

Referenced by upgradeDbgIntrinsicToDbgRecord().

getAddress()

Value * DbgVariableRecord::getAddress

(

)

const

Definition at line 496 of file DebugProgramInstruction.cpp.

References assert(), llvm::cast(), llvm::dyn_cast_or_null(), getRawAddress(), and Value.

Referenced by buildOverlapMapAndRecordDeclares(), llvm::at::calculateFragmentIntersect(), fixupDebugInfoPostExtraction(), isKillAddress(), replaceVariableLocationOp(), and setKillAddress().

getAddressExpression()

DIExpression * llvm::DbgVariableRecord::getAddressExpression ( ) const

inline

Definition at line 530 of file DebugProgramInstruction.h.

References AddressExpression.

Referenced by buildOverlapMapAndRecordDeclares(), llvm::at::calculateFragmentIntersect(), createDebugIntrinsic(), getAddressExpression(), and llvm::ValueEnumerator::ValueEnumerator().

getAssignID()

DIAssignID * DbgVariableRecord::getAssignID

(

)

const

Definition at line 507 of file DebugProgramInstruction.cpp.

References llvm::cast(), and llvm::DebugValueUser::DebugValues.

Referenced by createDebugIntrinsic(), llvm::at::getAssignmentInsts(), getIDFromMarker(), and llvm::ValueEnumerator::ValueEnumerator().

getExpression()

DIExpression * llvm::DbgVariableRecord::getExpression ( ) const

inline

Definition at line 469 of file DebugProgramInstruction.h.

References Expression.

Referenced by buildOverlapMapAndRecordDeclares(), llvm::ConvertDebugDeclareToDebugValue(), llvm::ConvertDebugDeclareToDebugValue(), llvm::ConvertDebugDeclareToDebugValue(), createDebugIntrinsic(), llvm::DbgValueDef::DbgValueDef(), DbgVariableRecord(), getAddressExpression(), getFragment(), getFragmentSizeInBits(), llvm::FastISel::handleDbgInfo(), llvm::InsertDebugValueAtStoreLoc(), insertNewDbgInst(), isKillLocation(), migrateDebugInfo(), promoteSingleBlockAlloca(), rewriteSingleStoreAlloca(), llvm::coro::salvageDebugInfo(), UpdateDbgValue(), valueCoversEntireFragment(), llvm::ValueEnumerator::ValueEnumerator(), and llvm::SelectionDAGBuilder::visitDbgInfo().

getFragment()

std::optional< DbgVariableFragmentInfo > DbgVariableRecord::getFragment

(

)

const

Definition at line 392 of file DebugProgramInstruction.cpp.

References getExpression(), and llvm::DIExpression::getFragmentInfo().

Referenced by getFragmentOrEntireVariable().

getFragmentOrEntireVariable()

DbgVariableFragmentInfo llvm::DbgVariableRecord::getFragmentOrEntireVariable ( ) const

inline

Get the FragmentInfo for the variable if it exists, otherwise return a FragmentInfo that covers the entire variable if the variable size is known, otherwise return a zero-sized fragment.

Definition at line 497 of file DebugProgramInstruction.h.

References getFragment(), and getFragmentSizeInBits().

Referenced by llvm::at::calculateFragmentIntersect().

getFragmentSizeInBits()

std::optional< uint64_t > DbgVariableRecord::getFragmentSizeInBits

(

)

const

Get the size (in bits) of the variable, or fragment of the variable that is described.

Definition at line 396 of file DebugProgramInstruction.cpp.

References getExpression(), llvm::DIVariable::getSizeInBits(), and getVariable().

Referenced by getFragmentOrEntireVariable().

getNumVariableLocationOps()

unsigned DbgVariableRecord::getNumVariableLocationOps

(

)

const

Definition at line 275 of file DebugProgramInstruction.cpp.

References llvm::cast(), getRawLocation(), and hasArgList().

Referenced by addVariableLocationOps(), isKillLocation(), replaceVariableLocationOp(), and valueCoversEntireFragment().

getRawAddress()

Metadata * llvm::DbgVariableRecord::getRawAddress ( ) const

inline

Definition at line 525 of file DebugProgramInstruction.h.

References llvm::DebugValueUser::DebugValues, and isDbgAssign().

Referenced by createDebugIntrinsic(), getAddress(), and llvm::ValueEnumerator::ValueEnumerator().

getRawAddressExpression()

MDNode * llvm::DbgVariableRecord::getRawAddressExpression ( ) const

inline

Definition at line 531 of file DebugProgramInstruction.h.

References AddressExpression.

getRawAssignID()

Metadata * llvm::DbgVariableRecord::getRawAssignID ( ) const

inline

Definition at line 528 of file DebugProgramInstruction.h.

References llvm::DebugValueUser::DebugValues.

getRawExpression()

MDNode * llvm::DbgVariableRecord::getRawExpression ( ) const

inline

Definition at line 470 of file DebugProgramInstruction.h.

References Expression.

getRawLocation()

Metadata * llvm::DbgVariableRecord::getRawLocation ( ) const

inline

Returns the metadata operand for the first location description.

i.e., dbg intrinsic dbg.value,declare operand and dbg.assign 1st location operand (the "value componenet"). Note the operand (singular) may be a DIArgList which is a list of values.

Definition at line 476 of file DebugProgramInstruction.h.

References llvm::DebugValueUser::DebugValues.

Referenced by buildOverlapMapAndRecordDeclares(), createDebugIntrinsic(), llvm::DbgValueDef::DbgValueDef(), getNumVariableLocationOps(), getVariableLocationOp(), hasArgList(), isKillLocation(), location_ops(), llvm::coro::salvageDebugInfo(), and llvm::ValueEnumerator::ValueEnumerator().

getRawVariable()

MDNode * llvm::DbgVariableRecord::getRawVariable ( ) const

inline

Definition at line 466 of file DebugProgramInstruction.h.

References Variable.

getType()

LocationType llvm::DbgVariableRecord::getType ( ) const

inline

Definition at line 459 of file DebugProgramInstruction.h.

References Type.

Referenced by createDebugIntrinsic(), DbgVariableRecord(), getAddressExpression(), llvm::FastISel::handleDbgInfo(), isKillAddress(), llvm::coro::salvageDebugInfo(), setKillAddress(), and llvm::SelectionDAGBuilder::visitDbgInfo().

getValue()

Value * llvm::DbgVariableRecord::getValue ( unsigned OpIdx = 0 ) const

inline

Definition at line 478 of file DebugProgramInstruction.h.

References getVariableLocationOp(), OpIdx, and Value.

Referenced by insertNewDbgInst().

getVariable()

DILocalVariable * llvm::DbgVariableRecord::getVariable ( ) const

inline

Definition at line 465 of file DebugProgramInstruction.h.

References Variable.

Referenced by buildOverlapMapAndRecordDeclares(), llvm::ConvertDebugDeclareToDebugValue(), llvm::ConvertDebugDeclareToDebugValue(), llvm::ConvertDebugDeclareToDebugValue(), createDebugIntrinsic(), DbgVariableRecord(), findVarsWithStackSlot(), fixupDebugInfoPostExtraction(), getAggregateVariable(), getFragmentSizeInBits(), llvm::FastISel::handleDbgInfo(), llvm::InsertDebugValueAtStoreLoc(), insertNewDbgInst(), isCompositeType(), remarkAlloca(), valueCoversEntireFragment(), llvm::ValueEnumerator::ValueEnumerator(), and llvm::SelectionDAGBuilder::visitDbgInfo().

getVariableLocationOp()

Value * DbgVariableRecord::getVariableLocationOp

(

unsigned

OpIdx

)

const

Definition at line 281 of file DebugProgramInstruction.cpp.

References assert(), llvm::cast(), llvm::dyn_cast(), getRawLocation(), llvm::isa(), OpIdx, and Value.

Referenced by addVariableLocationOps(), getValue(), llvm::FastISel::handleDbgInfo(), hasValidLocation(), replaceVariableLocationOp(), replaceVariableLocationOp(), llvm::coro::salvageDebugInfo(), valueCoversEntireFragment(), and llvm::SelectionDAGBuilder::visitDbgInfo().

handleChangedLocation()

LLVM_ABI void llvm::DbgVariableRecord::handleChangedLocation

(

Metadata *

NewLocation

)

Handle changes to the location of the Value(s) that we refer to happening "under our feet".

References LLVM_ABI.

hasArgList()

bool llvm::DbgVariableRecord::hasArgList ( ) const

inline

Definition at line 442 of file DebugProgramInstruction.h.

References getRawLocation(), and llvm::isa().

Referenced by getNumVariableLocationOps(), llvm::FastISel::handleDbgInfo(), isKillLocation(), replaceVariableLocationOp(), replaceVariableLocationOp(), and llvm::SelectionDAGBuilder::visitDbgInfo().

hasValidLocation()

bool llvm::DbgVariableRecord::hasValidLocation ( ) const

inline

Returns true if this DbgVariableRecord has no empty MDNodes in its location list.

Definition at line 445 of file DebugProgramInstruction.h.

References getVariableLocationOp().

isAddressOfVariable()

bool llvm::DbgVariableRecord::isAddressOfVariable ( ) const

inline

Does this describe the address of a local variable.

True for dbg.addr and dbg.declare, but not dbg.value or dbg.declare_value, which describes its value.

Definition at line 450 of file DebugProgramInstruction.h.

References Declare, and Type.

Referenced by llvm::ConvertDebugDeclareToDebugValue(), llvm::DbgValueDef::DbgValueDef(), promoteSingleBlockAlloca(), rewriteSingleStoreAlloca(), and valueCoversEntireFragment().

isDbgAssign()

bool llvm::DbgVariableRecord::isDbgAssign ( ) const

inline

Definition at line 522 of file DebugProgramInstruction.h.

References Assign, and getType().

Referenced by llvm::ConvertDebugDeclareToDebugValue(), createDebugIntrinsic(), llvm::DbgValueDef::DbgValueDef(), llvm::memtag::DynCastToDbgAssign(), fixupDebugInfoPostExtraction(), llvm::at::getAssignmentInsts(), getIDFromMarker(), getRawAddress(), insertNewDbgInst(), LLVMDbgRecordGetKind(), replaceVariableLocationOp(), and llvm::ValueEnumerator::ValueEnumerator().

isDbgDeclare()

bool llvm::DbgVariableRecord::isDbgDeclare ( ) const

inline

Definition at line 420 of file DebugProgramInstruction.h.

References Declare, and Type.

Referenced by insertNewDbgInst(), LLVMDbgRecordGetKind(), and llvm::coro::salvageDebugInfo().

isDbgDeclareValue()

bool llvm::DbgVariableRecord::isDbgDeclareValue ( ) const

inline

Definition at line 422 of file DebugProgramInstruction.h.

References DeclareValue, and Type.

Referenced by llvm::coro::salvageDebugInfo().

isDbgValue()

bool llvm::DbgVariableRecord::isDbgValue ( ) const

inline

Definition at line 421 of file DebugProgramInstruction.h.

References Type, and Value.

Referenced by insertNewDbgInst(), and LLVMDbgRecordGetKind().

isEquivalentTo()

bool llvm::DbgVariableRecord::isEquivalentTo ( const DbgVariableRecord & Other ) const

inline

Definition at line 508 of file DebugProgramInstruction.h.

References llvm::DbgRecord::DbgLoc, DbgVariableRecord(), isIdenticalToWhenDefined(), and llvm::Other.

isIdenticalToWhenDefined()

bool llvm::DbgVariableRecord::isIdenticalToWhenDefined ( const DbgVariableRecord & Other ) const

inline

Definition at line 513 of file DebugProgramInstruction.h.

References AddressExpression, DbgVariableRecord(), llvm::DebugValueUser::DebugValues, Expression, llvm::Other, Type, and Variable.

Referenced by isEquivalentTo().

isKillAddress()

bool DbgVariableRecord::isKillAddress

(

)

const

Check whether this kills the address component.

This doesn't take into account the position of the intrinsic, therefore a returned value of false does not guarantee the address is a valid location for the variable at the intrinsic's position in IR.

Definition at line 520 of file DebugProgramInstruction.cpp.

References getAddress(), llvm::isa(), and Value.

Referenced by llvm::at::calculateFragmentIntersect(), and isKillAddress().

isKillLocation()

bool DbgVariableRecord::isKillLocation

(

)

const

Definition at line 386 of file DebugProgramInstruction.cpp.

References llvm::any_of(), getExpression(), getNumVariableLocationOps(), getRawLocation(), hasArgList(), llvm::isa(), llvm::DIExpression::isComplex(), location_ops(), and Value.

Referenced by llvm::DbgValueDef::DbgValueDef(), isKillAddress(), and SalvageDVI().

isValueOfVariable()

bool llvm::DbgVariableRecord::isValueOfVariable ( ) const

inline

Determine if this describes the value of a local variable.

It is false for dbg.declare, but true for dbg.value and dbg.declare_value, which describes its value.

Definition at line 455 of file DebugProgramInstruction.h.

References DeclareValue, Type, and Value.

Referenced by rewriteSingleStoreAlloca().

location_ops()

iterator_range< DbgVariableRecord::location_op_iterator > DbgVariableRecord::location_ops

(

)

const

Get the locations corresponding to the variable referenced by the debug info intrinsic.

Depending on the intrinsic, this could be the variable's value or its address.

Definition at line 252 of file DebugProgramInstruction.cpp.

References assert(), llvm::cast(), llvm::dyn_cast(), and getRawLocation().

Referenced by addVariableLocationOps(), fixupDebugInfoPostExtraction(), llvm::insertDebugValuesForPHIs(), isKillLocation(), replaceVariableLocationOp(), setKillLocation(), and llvm::SelectionDAGBuilder::visitDbgInfo().

print() [1/2]

void DbgVariableRecord::print	(	raw_ostream &	O,
		bool	IsForDebug = false ) const

Definition at line 5174 of file AsmWriter.cpp.

References getModuleFromDPI(), and print().

print() [2/2]

void DbgVariableRecord::print	(	raw_ostream &	ROS,
		ModuleSlotTracker &	MST,
		bool	IsForDebug ) const

Definition at line 5199 of file AsmWriter.cpp.

References F, llvm::ModuleSlotTracker::getMachine(), getModuleFromDPI(), llvm::ModuleSlotTracker::incorporateFunction(), and llvm::DbgRecord::Marker.

replaceVariableLocationOp() [1/2]

void DbgVariableRecord::replaceVariableLocationOp	(	unsigned	OpIdx,
		Value *	NewValue )

Definition at line 338 of file DebugProgramInstruction.cpp.

References assert(), llvm::cast(), llvm::DIArgList::get(), llvm::ValueAsMetadata::get(), getAsMetadata(), llvm::DbgRecord::getContext(), getNumVariableLocationOps(), getVariableLocationOp(), hasArgList(), llvm::isa(), OpIdx, llvm::SmallVectorTemplateBase< T, bool >::push_back(), setRawLocation(), and Value.

replaceVariableLocationOp() [2/2]

void DbgVariableRecord::replaceVariableLocationOp	(	Value *	OldValue,
		Value *	NewValue,
		bool	AllowEmpty = false )

Definition at line 304 of file DebugProgramInstruction.cpp.

References assert(), llvm::cast(), llvm::find(), llvm::DIArgList::get(), llvm::ValueAsMetadata::get(), getAddress(), getAsMetadata(), llvm::DbgRecord::getContext(), getVariableLocationOp(), hasArgList(), llvm::isa(), isDbgAssign(), llvm_unreachable, location_ops(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), setAddress(), setRawLocation(), and Value.

Referenced by llvm::insertDebugValuesForPHIs(), migrateDebugInfo(), rewriteDebugUsers(), llvm::coro::salvageDebugInfo(), setKillLocation(), and updateOneDbgValueForAlloca().

setAddress()

void llvm::DbgVariableRecord::setAddress ( Value * V )

inline

Definition at line 538 of file DebugProgramInstruction.h.

References llvm::ValueAsMetadata::get(), llvm::DebugValueUser::resetDebugValue(), and Value.

Referenced by migrateDebugInfo(), and replaceVariableLocationOp().

setAddressExpression()

void llvm::DbgVariableRecord::setAddressExpression ( DIExpression * NewExpr )

inline

Definition at line 534 of file DebugProgramInstruction.h.

References AddressExpression.

setAssignId()

void DbgVariableRecord::setAssignId

(

DIAssignID *

New

)

Definition at line 511 of file DebugProgramInstruction.cpp.

References llvm::DebugValueUser::resetDebugValue().

Referenced by migrateDebugInfo().

setExpression()

void llvm::DbgVariableRecord::setExpression ( DIExpression * NewExpr )

inline

Definition at line 468 of file DebugProgramInstruction.h.

References Expression.

Referenced by addVariableLocationOps(), restorePreTransformState(), rewriteDebugUsers(), llvm::coro::salvageDebugInfo(), UpdateDbgValue(), and updateOneDbgValueForAlloca().

setKillAddress()

void DbgVariableRecord::setKillAddress

(

)

Kill the address component.

Definition at line 515 of file DebugProgramInstruction.cpp.

References llvm::PoisonValue::get(), llvm::ValueAsMetadata::get(), getAddress(), getType(), and llvm::DebugValueUser::resetDebugValue().

Referenced by insertNewDbgInst().

setKillLocation()

void DbgVariableRecord::setKillLocation

(

)

Definition at line 374 of file DebugProgramInstruction.cpp.

References llvm::PoisonValue::get(), llvm::SmallPtrSetImpl< PtrType >::insert(), location_ops(), Poison, replaceVariableLocationOp(), and Value.

Referenced by migrateDebugInfo().

setRawLocation()

void llvm::DbgVariableRecord::setRawLocation ( Metadata * NewLocation )

inline

Use of this should generally be avoided; instead, replaceVariableLocationOp and addVariableLocationOps should be used where possible to avoid creating invalid state.

Definition at line 485 of file DebugProgramInstruction.h.

References assert(), llvm::isa(), and llvm::DebugValueUser::resetDebugValue().

Referenced by addVariableLocationOps(), replaceVariableLocationOp(), replaceVariableLocationOp(), and restorePreTransformState().

setVariable()

void llvm::DbgVariableRecord::setVariable ( DILocalVariable * NewVar )

inline

Definition at line 464 of file DebugProgramInstruction.h.

References Variable.

Referenced by fixupDebugInfoPostExtraction().

Friends And Related Symbol Documentation

DebugValueUser

friend class DebugValueUser

friend

Definition at line 277 of file DebugProgramInstruction.h.

References DebugValueUser.

Referenced by DbgVariableRecord(), DbgVariableRecord(), DbgVariableRecord(), DbgVariableRecord(), and DebugValueUser.

Member Data Documentation

AddressExpression

DbgRecordParamRef<DIExpression> llvm::DbgVariableRecord::AddressExpression

Definition at line 301 of file DebugProgramInstruction.h.

Referenced by createDVRAssign(), createLinkedDVRAssign(), createUnresolvedDbgVariableRecord(), DbgVariableRecord(), DbgVariableRecord(), getAddressExpression(), getRawAddressExpression(), isIdenticalToWhenDefined(), and setAddressExpression().

Expression

DbgRecordParamRef<DIExpression> llvm::DbgVariableRecord::Expression

Definition at line 300 of file DebugProgramInstruction.h.

Referenced by createDVRAssign(), createLinkedDVRAssign(), createUnresolvedDbgVariableRecord(), DbgVariableRecord(), DbgVariableRecord(), getExpression(), getRawExpression(), isIdenticalToWhenDefined(), and setExpression().

Type

LocationType llvm::DbgVariableRecord::Type

Classification of the debug-info record that this DbgVariableRecord represents.

Essentially, "does this correspond to a dbg.value, dbg.declare, or dbg.assign?". FIXME: We could use spare padding bits from DbgRecord for this.

Definition at line 293 of file DebugProgramInstruction.h.

Referenced by createUnresolvedDbgVariableRecord(), DbgVariableRecord(), DbgVariableRecord(), getType(), isAddressOfVariable(), isDbgDeclare(), isDbgDeclareValue(), isDbgValue(), isIdenticalToWhenDefined(), isValueOfVariable(), and llvm::coro::salvageDebugInfo().

Variable

DbgRecordParamRef<DILocalVariable> llvm::DbgVariableRecord::Variable

Definition at line 299 of file DebugProgramInstruction.h.

Referenced by createDVRAssign(), createLinkedDVRAssign(), createUnresolvedDbgVariableRecord(), DbgVariableRecord(), DbgVariableRecord(), getRawVariable(), getVariable(), isIdenticalToWhenDefined(), remarkAlloca(), and setVariable().

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The documentation for this class was generated from the following files:

• include/llvm/IR/DebugProgramInstruction.h
• lib/IR/AsmWriter.cpp
• lib/IR/DebugProgramInstruction.cpp